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Pioneer League (baseball)

From Wikipedia, the free encyclopedia

Pioneer League (baseball)
PresidentJames R. McCurdy
No. of teams8
CountryUnited States of America
Most recent
Idaho Falls Chukars (2019)
Most titlesBillings Mustangs (15)
ClassificationRookie Advanced
Official website

The Pioneer League is a Minor League Baseball league which currently operates in the Rocky Mountain region of the United States. In the past, it also operated in adjoining portions of Canada. It is classified as a Rookie League and is staffed with mostly first and second-year players. The Pioneer League is a short-season league operating from June to early September.

Along with the Appalachian League, it forms the second-lowest rung on the minor league ladder, the "Rookie Advanced" level. While classified as a Rookie league, the level of play is slightly higher than that of the two spring training complex-based Rookie leagues, the Gulf Coast League and Arizona League, and the Dominican Republic-based rookie league the Dominican Summer League. Unlike those leagues, Rookie Advanced leagues charge admission and sell concessions.


The Pioneer League began in 1939 with six teams in Idaho and Utah, operating at the Class C level. The original six teams were the Boise Pilots, Lewiston Indians, Ogden Reds, Pocatello Cardinals, Salt Lake City Bees, and Twin Falls Cowboys. With players in short supply due to World War II, the league suspended operations for the 1943 through 1945 seasons.

In 1948, the league expanded by adding two teams in Montana; the Billings Mustangs and Great Falls Electrics. In these early years, teams in the league either operated independently or were affiliated with Major League Baseball (MLB) or Pacific Coast League (PCL) parent clubs, as the PCL was attempting to grow (but ultimately failed) into a major league. When MLB's Los Angeles Dodgers displaced the PCL's Hollywood Stars in 1958, the Stars relocated and became the "new" Salt Lake City Bees, remaining in the PCL and taking away the Pioneer League's largest market.

By 1959, the Pioneer League was down to six teams; Billings and Great Falls along with the Boise Braves, Idaho Falls Russets, Missoula Timberjacks, and Pocatello Athletics. The league operated at the Class A level for one year (1963), before changing to Rookie league in 1964, when there were only four teams in the league; the Idaho Falls Angels, Magic Valley Cowboys, Pocatello Chiefs, and Treasure Valley Cubs. By 1978, the league had again grown to eight teams — Billings and Idaho Falls along with the Butte Copper Kings, Calgary Cardinals, Great Falls Giants, Helena Phillies, Lethbridge Dodgers, and Medicine Hat Blue Jays. With the exception of 1986 (when there were six teams), there have been eight teams in the league since then, and it is not likely to change without further expansion or contraction within Major League Baseball.

In 2016, total league attendance was 616,686,[1] down slightly from the 2015 total of 633,622.[2]

After the 2018 season, the Helena Brewers relocated to Colorado Springs, Colorado, where they now play as the Rocky Mountain Vibes.[3]

The start of the 2020 season was postponed due to the COVID-19 pandemic before ultimately being cancelled on June 30.[4][5]

Current teams

Current team locations:
  Northern Division
  Southern Division
Division Team MLB Affiliation City Stadium Capacity
Northern Billings Mustangs Cincinnati Reds Billings, Montana Dehler Park 5,000
Great Falls Voyagers Chicago White Sox Great Falls, Montana Centene Stadium 2,500
Idaho Falls Chukars Kansas City Royals Idaho Falls, Idaho Melaleuca Field 3,400
Missoula PaddleHeads Arizona Diamondbacks Missoula, Montana Ogren Park at Allegiance Field 3,500
Southern Grand Junction Rockies Colorado Rockies Grand Junction, Colorado Suplizio Field 7,014
Ogden Raptors Los Angeles Dodgers Ogden, Utah Lindquist Field 8,262
Orem Owlz Los Angeles Angels Orem, Utah UCCU Ballpark 5,000
Rocky Mountain Vibes Milwaukee Brewers Colorado Springs, Colorado UCHealth Park 8,500

Current team rosters

Pioneer League teams (1939–present)

Bold text indicates active teams.

Teams by city

Teams by city
City, State or Province Team(s) Years Seasons
Billings, Montana Mustangs 1948–1963, 1969–present 67
Boise, Idaho Braves, Pilots, Yankees 1939–1942, 1946–1963 22
Butte, Montana Copper Kings 1978–1985, 1987–2000 22
Caldwell, Idaho Cubs, Treasure Valley Cubs 1964–1971 8
Calgary, Alberta Cardinals, Expos 1977–1984 8
Casper, Wyoming Ghosts 2001–2011 11
Colorado Springs, Colorado Vibes 2019–present 1
Great Falls, Montana Dodgers, Electrics, Giants, Selectrics, Voyagers, White Sox 1948–1963, 1969–present 67
Grand Junction, Colorado Rockies 2012–present 8
Helena, Montana Brewers, Gold Sox, Phillies 1978–2000, 2003–2018 29
Idaho Falls, Idaho A's, Angels, Braves, Chukars, Gems, Nuggets, Padres, Russets, Yankees 1940–1942, 1946–present 77
Lethbridge, Alberta Black Diamonds, Dodgers, Expos, Mounties 1975–1998 24
Lewiston, Idaho Indians 1939 1
Medicine Hat, Alberta A's, Blue Jays 1977–2002 26
Missoula, Montana Osprey, PaddleHeads, Timberjacks 1956–1960, 1999–2019, 2020–present 26
Ogden, Utah Dodgers, Raptors, Reds, Spikers 1939–1942, 1946–1955, 1966–1974, 1994–present 49
Orem, Utah Owlz 2005–present 15
Pocatello, Idaho A's, Bannocks, Cardinals, Chiefs, Gems, Giants, Pioneers, Gate City Pioneers, Posse 1939–1942, 1946–1965, 1984–1985, 1987–1991, 1993 32
Provo, Utah Angels 2001–2004 4
Salt Lake City, Utah Bees, Giants, Trappers 1939–1942, 1946–1957, 1967–1969, 1985–1992 27
Twin Falls, Idaho Cowboys, Magic Valley Cowboys 1939–1942, 1946–1957, 1961–1966, 1968–1971 36


James R. McCurdy is the current president of the Pioneer Baseball League. McCurdy received his BBA from the University of Houston in 1970 and his JD from the University of Texas School of Law in 1974. He mediated the restructure of Minor League Baseball's governing structure in 1992 and was an inaugural member of the MiLB board of trustees from 1992-94. In 1993, he was appointed by the president of MiLB to serve on the Professional Baseball Executive Council. McCurdy was elevated to the position of league president in 1994, replacing Ralph Nelles who was the president from 1975 to 1993. McCurdy also teaches sports law courses at Gonzaga University School of Law and the University of San Diego School of Law. His publications include: Sports Law: Cases & Materials (with Ray Yasser, C. Peter Goplerud, and Maureen Weston) (7th ed. LexisNexis 2011),[6] Thunder on the Road from Seattle to Oklahoma City: Going from NOPA to ZOPA in the NBA, in Legal Issues in American Basketball ch. IV (Lewis Kurlantzick ed., Academica Press 2011),[6] and, The Fundamental Nature of Professional Sports Leagues, Constituent Clubs, & Mutual Duties to Protect Market Opportunities: Organized Baseball Case Study, in Legal Issues in Professional Baseball ch. IV (Lewis Kurlantzick ed., Academica Press 2005).[6]

League champions

League champions have been determined by different means since the Pioneer League's formation in 1939. There were postseason playoffs when the league operated as Class C (1939–1962), except for 1939 and 1956, and for the three years during World War II when the league did not operate. In the league's one year as Class A (1963), there were also postseason playoffs. After becoming a Rookie league in 1964, the league champions were simply the regular season pennant winners through 1977. Since 1978, postseason playoffs have again been held to determine a league champion.[7][8]


  1. ^ "Pioneer League: Attendance (2016)". Minor League Baseball. Retrieved August 15, 2017.
  2. ^ "Pioneer League: Attendance (2015)". Minor League Baseball. Retrieved September 23, 2015.
  3. ^ "New Name on Tap for Colorado Springs Pioneer League Team". Ballpark Digest. June 13, 2018. Retrieved June 14, 2018.
  4. ^ "A Message From Pat O'Conner". Minor League Baseball. March 13, 2020. Retrieved May 5, 2020.
  5. ^ "2020 Minor League Baseball Season Shelved". Minor League Baseball. June 30, 2020. Retrieved July 1, 2020.
  6. ^ a b c "James R. McCurdy". 2015-12-11. Retrieved 2016-08-11.
  7. ^ "Pioneer League Champions". Pioneer League. Minor League Baseball. Retrieved August 13, 2017.
  8. ^ Johnson, Lloyd; Wolff, Miles (2007). Encyclopedia of Minor League Baseball (third ed.). Baseball America. ISBN 9781932391176.

External links

This page was last edited on 26 August 2020, at 03:51
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